SynthID Invisible Watermark Inspector & Robustness Lab

Discrete Cosine Transform (2D DCT) imperceptible spectral steganography vs visual badge removal

DCT Core 2.4.0 active BAND: MID-FREQ (12-28)
Watermark Configuration SYNTHID EMBEDDER
Remove Visible AI Watermark Badge
Channel Attacks & Disruptions SIMULATION RACK
Multi-Domain Inspection Stage 256 x 256 px • 8x8 Block Grid
SPATIAL DOMAIN (PERCEIVED) Visible Badge: Removed
Output: Attacked Canvas
FREQUENCY SPECTROGRAM (ΔDCT) SynthID Residuals
Mid-Band Residual Energy
Why SynthID Survives: Removing the visible UI badge (the corner icon) alters only superficial pixels in that corner. The invisible SynthID watermark is modulated across all 8×8 Discrete Cosine Transform mid-frequency bands across the entire image. Even with heavy JPEG loss and cropping, the cryptographic pseudo-random correlation signature remains mathematically detectable.
Enjoy this tool? Build your own with Super